Quattro Environmental Scanning Electron Microscope (ESEM)

Environmental scanning electron microscope (ESEM) for the study of materials in their natural state.

The Thermo Scientific Quattro Environmental Scanning Electron Microscope (ESEM) is a highly versatile platform for in situ dynamic experiments, offering exceptional imaging and analytical performance. Its unique environmental mode (ESEM) allows samples to be studied in their native state, making it ideal for diverse academic, industrial, and government labs. The Quattro ESEM's ease of use and flexibility cater to multiple users with varying experience levels and disciplines. A field emission gun (FEG) ensures excellent resolution, and three vacuum modes (high vacuum, low vacuum, and ESEM) accommodate a wide range of samples, including those outgassing or otherwise vacuum-incompatible.

Its ESEM capability enables the study of materials under various conditions, such as wet/humid, hot, or reactive environments, supporting the development of new materials and products. Cooling experiments on wet materials are possible with the Peltier cooling stage or WetSTEM Technology, while heating experiments can be performed in high vacuum (with a high-vacuum heating stage), low vacuum/ESEM mode (with two ESEM heating stages reaching 1,000°C and 1,400°C), or on a localized area (with the µHeater Holder).

The large chamber accommodates a wide range of accessories, including EDS (with ports for dual 180-degree attachment), EBSD (coplanar with EDS), and WDS. Furthermore, it features ChemiSEM Technology, a live elemental imaging capability.





Back to Scanning Electron Microscope (Floor Model)


Features

Quattro ESEM is applicable to a wide variety of materials


Metals and alloys (metallic filter).


Additive manufacturing powder.


Soft materials (polymeric fibers).


Biological samples (mold spores).


Minerals (shell’s surface).


Chemicals (zinc oxide nanoparticles assembled into platelets).

Dynamic in situ experiments

In situ study of materials in their natural state: unique high-resolution FEG-SEM with environmental mode (ESEM). In situ analysis at temperatures ranging from -165°C to 1,400°C with a range of cryo, Peltier, and heating stages.


Peltier cooling experiment of sodium sulfate crystals in sandstone.
In situ cooling experiment conducted on a sandstone sample with crystals of sodium sulfate. The target of the experiment was to study the sodium sulfate behavior when completely hydrated. The pressure was varied up to 700 Pa, maintaining the temperature at 2˚C. Sample courtesy of Institute of Theoretical and Applied Mechanics of the Academy of Science, Czech Republic.


μHeater Holder heating experiment of magnetite and hematite.
Heating experiment run with the μHeater Holder. The video shows the heating of a mix of magnetite and hematite from 40˚C up to 1,000˚C.

Wide range of information

Observe all information from all samples with simultaneous SE and BSE imaging in every mode of operation. Several additional detectors, such as the STEM3+ detector and the retractable RGB cathodoluminescence (CL) detector are available to accommodate every user’s need and provide a complete set of information from a wide range of materials.


Material contrast from a mix of different metals.


Bright field (BF) STEM3+ image of a biological section of a planarian.


CL image of diamonds.

Excellent analytical capabilities

Excellent analytical capabilities with a flexible chamber that allows multiple EDS, EBSD, or WDS detectors. Elemental information at your fingertips with ChemiSEM Technology, which provides live, quantitative, elemental mapping for unprecedented time to result and ease of use. Excellent analysis of non-conductive samples: accurate EDS and EBSD are enabled in low vacuum with the Quattro ESEM's through-the-lens pumping.


ChemiSEM image of dental filling material, showing a mixture of Hg, Cu, Sn and Ag.


EBSD on ceramic materials in low vacuum.

Minimize sample preparation time with the unique combination of high-vacuum, low-vacuum, and environmental modes


Polymeric fibers (low vacuum imaging, 80 Pa).


Hydrated mold spores (ESEM imaging, 800 Pa).


Salts on bacon (ESEM imaging, 700 Pa).

Ease of use with innovative options and advanced automation

Easy to use, intuitive software with User Guidance. The unique Undo function permits efficient exploration of imaging conditions and allows you to work faster with fewer mouse clicks.


Optimize your work and feel free to explore the imaging condition with the unique Undo function.

Advanced automation

Advanced automation is available through either Thermo Scientific AutoScript 4 or Maps Software, tailored to specific application requirements. AutoScript 4 provides control of the Quattro ESEM via a Python-based API, optimizing in situ experiments and monitoring dynamic parameters like temperature, stage position, or pressure. Maps Software automates large-area acquisition on multiple samples with up to four simultaneous signals, boosting productivity and providing a multi-scale, multi-layered visualization environment for correlating 2D and 3D data from any source.


ESEM heating stage experiment on a silver wire, heated from 300˚C to 530˚C. AutoScript 4 Software was used to obtain a live drift compensation through a combination of beam shift and stage moves. The result was a stable image of the silver wire for the whole duration of the movie, even when the wire changed location over the substrate.


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